<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }"
                >首页</el-breadcrumb-item
            >
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索和按钮 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input
                        placeholder="请输入内容"
                        v-model="queryInfo.query"
                        clearable
                        @clear="getGoodsList"
                    >
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table 表格区域 -->
            <el-table :data="goodslist" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="110px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="90px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="160px">
                    <!-- 通过作用域插槽的方式接受数据 -->
                    <!-- eslint-disable-next-line -->
                    <template slot-scope="scope">
                        {{ scope.row.add_time | dateFormat }}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="140px">
                    <!-- 通过作用域插槽的方式接受数据 -->
                    <!-- eslint-disable-next-line -->
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button
                            type="danger"
                            icon="el-icon-delete"
                            size="mini"
                            @click="removeById(scope.row.goods_id)"
                        ></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 5, 10, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                background>
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
    // 私有数据
    data() {
        return {
            // 查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodslist: [],
            // 总数据条数
            total: 0
        }
    },
    // 声明周期函数
    created() {
        this.getGoodsList()
    },
    // 事件处理函数
    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList() {
            const { data: res } = await this.$http.get('goods', {
                params: this.queryInfo
            })

            if (res.meta.status !== 200) {
                return this.$message.error('获取商品列表失败!!!')
            }

            this.$message.success('获取商品列表成功!!!')
            console.log(res.data)
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        // 触发这个函数拿到最新的分页数据
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        // 监控页码值
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        // 删除商品
        async removeById(id) {
            const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)

            if (confirmResult !== 'confirm') {
                return this.$message.info('已经取消删除!')
            }

            const { data: res } = await this.$http.delete(`goods/${id}`)

            if (res.meta.status !== 200) {
                return this.$message.error('删除失败!')
            }

            this.$message.success('删除成功!')
            this.getGoodsList()
        },
        // 添加商品路由跳转
        goAddpage() {
            this.$router.push('/goods/add')
        }
    }
}
</script>

<style lang="less" scoped>
</style>